Abstract:Objective: To investigate the clinical efficacy and safety of leflunomide in the treatment of systemic lupus erythematosus (SLE) and its effects on serum levels of B cell activating factor (BAFF), monocyte chemoattractant protein (MCP-4), interleukin-8 (IL-8) and interleukin-10 (IL-10). Methods: 96 patients with systemic lupus erythematosus admitted to our hospital from September 2014 to September 2016 were selected. According to the simple random number table, all the patients were divided into the observation group (n=48) and the control group (n=48). The control group was treated with glucocorticoid, while the observation group was treated with leflunomide. Then the clinical effect, the changes of 24 h urinary protein, SLEDAI scores, serum levels of BAFF, MCP-4, IL-8 and IL-10, and the incidence of adverse reactions in the two groups before and after treatment were observed and compared between the two groups. Results: After treatment, the total effective rate of observation group was significantly higher than that of the control group (P<0.05). Before treatment, there was no significant difference in the 24h urinary protein, SLEDAI score, serum BAFF, MCP-4, IL-8 and IL-10 levels between the two groups (P>0.05); after treatment, the 24h urinary protein, SLEDAI score, serum BAFF, MCP-4, IL-8 and IL-10 of the two groups were significantly improved compared to those before treatment (P<0.05), the 24h urinary protein, SLEDAI scores, serum BAFF, MCP-4, IL-8 and IL-10 levels of observation group were significantly lower than those of the control group (P<0.05); the incidence of adverse reactions in the observation group was significantly lower than that of the control group (P<0.05). Conclusion: Leflunomide can enhance the clinical efficacy in the treatment of systemic lupus erythematosus, which may be related to the inhibition of serum BAFF, MCP-4, IL-8 and IL-10 levels.
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